Patents by Inventor John B. Day

John B. Day has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Auxiliary water projector for jet propelled watercraft
    Patent number: 5299960
    Abstract: An auxiliary water projector system for use on jet propelled watercraft that only requires removal of the steering nozzle to be connected to the waterjet propulsion system. A thrust control valve is positioned adjacent the remounted steering nozzle. Using the thrust control valve and a flow control valve the operation of the watercraft and auxiliary water projector can be simultaneously controlled to include stationary, forward or reverse movement of the watercraft.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: April 5, 1994
    Inventors: John B. Day, Larry Krack